In on-premises wiring the first or only pair of inside wiring and jacks are color coded in green for the tip conductor, and red for the ring side. A second pair is coded in black for tip and yellow for ring. A third pair consists of white tip coding and blue ring coding. Tip and ring - Wikipedia Was this helpful? Phone-man's Home Phone Wiring Advice Page - Wire Color Codes What do all the wire colors mean? Two wires (normally referred to as a "pair") are needed for most telephone connections. One of the wires in a pair is referred to as the "tip" and the other is called the "ring". Color code schemes are used to identify wires within a cable. Tip and Ring - Tech-FAQ Tip and Ring are telephony slang for the two wires which make up the electrical circuit used for telephone wiring.Tip is the nickname for the electrically positive wire and Ring is the nickname for the electrically negative wire.3.2/5(6) Tip and ring - Wikipedia Color code. When simple on-premises wiring is color-coded, two-wire telephone plugs or the first pair of a multi-pair connector commonly have the tip wire coded green and ring coded red. In four wire plugs, the second pair has black tip and yellow ring. A third pair consists of white tip and blue ring. Doing your own telephone wiring Doing your own telephone wiring. Note: this page describes the phone wiring conventions in the United States. I'm not familiar with the phone wiring conventions outside the U.S., so the information here may not apply in your country.